CVE-2026-53505

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Source
https://cve.org/CVERecord?id=CVE-2026-53505
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53505.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-53505
Aliases
Downstream
Published
2026-07-31T19:00:22.755Z
Modified
2026-08-01T03:46:57.595548811Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Thumbor proportion filter allows unbounded post-transform resize leading to remote DoS
Details

Thumbor is an open-source photo thumbnail service by globo.com. Prior to 7.8.0, Thumbor's filters:proportion(<value>) filter does not enforce an upper bound on <value> and runs in the post-transform phase. An attacker can trigger extremely large resizes (CPU/memory exhaustion) and cause denial of service. This issue is fixed in 7.8.0.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53505.json",
    "cwe_ids": [
        "CWE-400"
    ],
    "cna_assigner": "GitHub_M"
}
References

Affected packages

Git / github.com/thumbor/thumbor

Affected ranges

Type
GIT
Repo
https://github.com/thumbor/thumbor
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
a366291cfcd29ec140911c97ee8e0e794f2a40f9
Database specific 
{
    "source": "AFFECTED_FIELD",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "7.8.0"
        }
    ]
}

Affected versions

0.*
0.1.0
0.1.1
0.2.0
0.2.1
0.3.0
0.3.1
0.4.0
0.4.1
0.5.0
0.5.1
0.6.1
0.6.2
0.6.3
0.6.4
0.6.5
0.7.0
0.7.10
0.7.11
0.7.12
0.7.13
0.7.14
0.7.9
0.8.0
0.8.2
0.8.3
0.8.4
0.9.0
0.9.1
0.9.3
0.9.4
0.9.5
0.9.6
0.9.7
2.*
2.0.2
2.0.4
2.0.5
2.3.0
2.4.1
2.4.2
2.4.3
2.4.4
2.4.5
2.4.6
2.4.7
2.4.8
2.4.9
2.5.0
2.5.1
2.5.2
2.6.0
2.6.1
2.6.2
2.6.3
2.6.4
2.6.5
2.6.6
2.7.0
2.7.1
2.7.2
2.7.3
2.7.4
2.7.5
2.7.6
2.7.8
2.8.0
2.8.1
3.*
3.0.0
3.0.1
3.0.2
3.1.0
3.1.1
3.10.0
3.10.1
3.10.2
3.11.0
3.11.1
3.12.0
3.12.1
3.12.2
3.13.0
3.13.1
3.13.2
3.13.3
3.14.0
3.14.1
3.14.2
3.14.3
3.14.4
3.14.5
3.14.6
3.14.7
3.15.0
3.2.0
3.3.0
3.4.0
3.4.1
3.4.2
3.5.0
3.5.1
3.5.2
3.6.0
3.6.1
3.6.10
3.6.11
3.6.2
3.6.3
3.6.4
3.6.5
3.6.6
3.6.7
3.6.8
3.6.9
3.7.0
3.7.1
3.7.2
3.7.3
3.8.0
3.8.1
3.9.0
3.9.1
3.9.2
3.9.3
3.9.4
4.*
4.0.0
4.0.3
4.0.4
4.1.0
4.1.1
4.1.2
4.1.3
4.10.0
4.10.1
4.10.2
4.10.3
4.11.0
4.11.1
4.12.0
4.12.1
4.12.2
4.2.0
4.2.1
4.3.0
4.4.0
4.4.1
4.5.0
4.5.1
4.5.2
4.5.3
4.5.4
4.6.0
4.7.0
4.7.1
4.8.0
4.8.1
4.8.2
4.8.3
4.8.6
4.8.7
4.9.0
4.9.1
5.*
5.0.0
5.0.0-rc1
5.0.0rc2
5.0.1
5.0.2
5.0.3
5.0.4
5.0.5
5.0.6
5.1.0
5.2.0
5.2.1
6.*
6.0.0
6.0.0b1
6.0.0b2
6.0.0b3
6.0.0b5
6.0.1
6.2.0
6.2.1
6.3.0
6.3.1
6.3.2
6.3.3rc
6.4.0
6.4.1
6.4.2
6.4.3
6.5.0
6.5.2
6.6.0
6.6.1
6.7.0
6.7.1
7.*
7.0.0
7.0.0a1
7.0.0a2
7.0.0a3
7.0.0a4
7.0.0a5
7.0.0b1
7.0.1
7.0.10
7.0.11
7.0.12
7.0.2
7.0.3
7.0.5
7.0.6
7.0.7
7.0.8
7.0.9
7.1.0
7.1.1
7.1.2
7.2.0
7.2.1
7.3.0
7.3.1
7.3.2
7.4.1
7.4.2
7.4.3
7.4.4
7.4.5
7.4.6
7.4.7
7.5.0
7.5.1
7.5.2
7.6.0
7.7.0
7.7.1
7.7.2
7.7.3
7.7.4
7.7.5
7.7.6
7.7.7

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53505.json"